Home / 3,986,511.03-5,980,638.63-1,291,108.70

Finding the Fourth Proportional to 3,986,511.03, 5,980,638.63 and 1,291,108.70

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Solution

The fourth proportional to 3,986,511.03, 5,980,638.63 and 1,291,108.70 is: 1,936,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,511.03 : 5,980,638.63 = 1,291,108.70 : x
  2. Step 2: Convert to fraction form
    3,986,511.03/5,980,638.63 = 1,291,108.70/x
  3. Step 3: Cross multiply
    3,986,511.03x = 5,980,638.63 × 1,291,108.70
  4. Step 4: Simplify right side
    3,986,511.03x = 7,721,654,536,845.89
  5. Step 5: Solve for x
    x = 7,721,654,536,845.89/3,986,511.03
  6. Step 6: Final answer
    x = 1,936,945.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.